One of the worst movies I have seen so far, the crude potty humour was too much. The songs were very annoying and catchy, especially the performance almost at the end of the movie. Also the design on Alvin is terrible compared to Chipwrecked, considering the fact that his face keeps changing every second and in every single shot. What's funny is that this movie came out 4 years after Chipwrecked was released. The stepbrother Miles was possibly one of the worst parts of the movie, considering the fact that he bullied Alvin and his brothers and yet never apologized to them and yet Alvin and his brothers had to do the apologizing, which made absolutely no sense. Besides this seemed like a movie just for kids (based on the crude humour), instead of both kids and adults.